Joule Ventures
VC Fund
New York, United States
Joule Ventures is a U.S.-based partner-only seed fund providing best-in-class structural and commercialization support to Israel’s most compelling enterprise-focused entrepreneurs. Our dedication to founders is evident in the efficiency of our operations, the value we deliver starting well before the investment, and our commitment to day onerelationship building between key stakeholders. In an increasingly transactional market, we remain a steadfast people-first, principles-driven investor.
- Total investments:
- 46
- Last investment:
- Lead investor:
- 50%
Last updated:
For AI agents: llms.txt
Industries Joule Ventures invests in
Stages Joule Ventures invests in
Countries Joule Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $800k–$13M
- Series A
- $7.4M–$15M
- Series B
- $25M–$30M
Investment Focus
Industry
- Software 13 (28%)
- Cyber Security 5 (11%)
- SaaS 4 (9%)
- FinTech 4 (9%)
- Analytics 4 (9%)
Stage
- Seed 24 (52%)
- Series A 4 (9%)
- Series B 2 (4%)
- Pre-Seed 1 (2%)
- Series C 1 (2%)
Country
- United States 13 (28%)
- Israel 11 (24%)
- United Kingdom 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Brian Rosenzweig
Co-Founder, Partner
|
Co-Founder, Partner | Total investments: 10 | Find email | |
Dafna Winocur Biran
Partner
|
Partner | Total investments: 4 | Find email | |
Daniel Frankenstein
Co-Founder | Partner
|
Co-Founder | Partner | Total investments: 0 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Corbel is a fintech platform that offers financing and CPQ tools for equipment sales. | $6.7M / Seed / Oct 15, 2025 | ||
| Coralogix is a full-stack observability platform that enables businesses to monitor and manage data in real time, providing instant insights without the need for indexing. The platform supports Log Analytics, application performance monitoring (APM), security information and event management (SIEM), real user monitoring (RUM), and infrastructuremonitoring, offering complete visibility into AI performance, security, and governance in a single solution. Coralogix offers a simple pricing model based on data volume, along with world-class support that ensures rapid response times and swift resolutions. | $115M / Series E / Jun 17, 2025 | ||
| Cache offers automated savings and interest optimization for personal finances using technology-driven solutions. | Seed / Apr 01, 2025 | ||
| ControlMonkey is a SaaS platform that helps to manage and automate your Cloud environments with Infrastructure as Code. | $7M / Seed / Jan 15, 2025 | ||
| #1 Shopping Solution for the hospitality industry | $15M / Series A / Jan 15, 2025 | ||
| Pynt is an automated API security testing tool that enables enterprises to easily eliminate complicated application security issues from the beginning of the development lifecycle. | $6M / Seed / Sep 05, 2023 | ||
| #1 Shopping Solution for the hospitality industry | $8M / Seed / Mar 28, 2023 | ||
| AccSenSe develops a platform to manage and protect cloud Identity and access management systems from cyber-attacks and human errors. | $5M / Seed / Jan 05, 2023 | ||
| Perfect is a talent finding platform that provides recruiting services. It is a system for spotting and engaging potential candidates. The company's contact mode is at its physical address. | $13M / Seed / Dec 20, 2022 | ||
| Perfect is a generative artificial intelligence-powered platform that helps organizations to fill staff vacancies by mapping the profiling career graphs of millions of technology-focused professionals. | $13M / Seed / Dec 20, 2022 | ||
| See all 46 investments → | |||
Co-Investors
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FAQ
What does Joule Ventures invest in?
Joule Ventures invests primarily in Software, Cyber Security and SaaS startups, most often at Seed and Series A stage. Most of the 46 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Joule Ventures's check size?
Joule Ventures typically joins rounds of $800k–$13M at Seed, $7.4M–$15M at Series A and $25M–$30M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Joule Ventures participates in.
How do I contact Joule Ventures?
Public channels for Joule Ventures include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Joule Ventures?
The team at Joule Ventures includes Brian Rosenzweig (Co-Founder, Partner), Dafna Winocur Biran (Partner) and Daniel Frankenstein (Co-Founder | Partner). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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